An analysis of eddy current and hysteresis losses in solid iron based upon simulation of saturation and hysteresis characteristics

This paper offers a numerical approach to the determination of the magnetic field distribution, in a semi-infinite space, filled with conductive ferromagnetic materiaI. Simple mathematical functions are used to simulate the saturation and hysteresis characteristics of a given material. The case of a sinusoidal magnetic field, applied uniformly on the boundary plane, is studied as an example. The paper offers an analysis of the field distribution during the transient period, as well as an evaluation of steady-state characteristics like surface current density, penetration depth, power los - ses and power factor. The comparison of steady-state results with those given by other methods, is discussed at the end of the paper.